Thanks Kovid, fully understood
Didn't occur to me that the inbuilt handler would produce
bigger files, was hoping they be even smaller
I wasn't aware of limitations of DOCX_Input (as revealed by demo.docx), because once I overcame those integration issues, the PI satisfied a 100% of my needs, most of my wishes and delivered some nice surprises. The documents we're dealing with are mainly simple text, if there are complexities we retain the original (99% PDF) - and simply extract the text for analysis.

for the changes to author link in Book Details - now I can set up my pseudonym links
Request for Comment
say I set up a 0.9.33 portable with the DOCX_Input PI installed
say I create a symlink in its folder called
Calibre Library that 'points' to my real library
E:\Calibre Libraries\Main
then I could do my DOCX->EPUB Conversions from that context and use installed calibre for other stuff.
Just an idea.
BR